Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875081 | Electrophotographic device having a.c. biased cleaning member | William L. Goffe | 1989-10-17 |
JS
Joseph G. Schram
Overall (1989): #92,987 of 140,708Top 70%
1
Patents 1989